Currently, many of you own the Siren series designed specifically for the O3. Due to its compact design, it isn’t directly compatible with the O4 Pro. But don’t worry—we’ve got an alternative solution! These adapters work with 2.5, 3, 3.5, and 5-inch products. 
That said, please note that this isn’t the original design intention. The lens will extend outward, which may pose some risk to its protection. So, we recommend carefully considering your use case before installing.

It must be used in combination with PS-2 and M2x6 Countersunk screws.
Can be used on Djinn F25 / Siren F3 / Siren F35 / Siren F5 Mini / Siren F5.